This study investigates the potential use of Sugarcane Bagasse Ash (SCBA) as a partial replacement for cement and Crushed Groundnut Shells (CGS) as a partial replacement for fine aggregates in M25 grade concrete. The research aims to mitigate environmental issues posed by agricultural waste while promoting sustainable construction practices. A comprehensive experimental program was conducted with variations in SCBA (2%, 5%, and 10%) and a fixed 5% replacement of sand with CGS. Concrete properties were evaluated through slump tests and compressive strength tests at curing intervals of 7, 14, and 28 days. Results show that up to 10% SCBA and 5% CGS can effectively be used without compromising structural performance. The use of agricultural by-products presents a viable solution for eco-friendly and cost-effective construction materials.
Introduction
Concrete, widely used in construction, relies heavily on cement and sand, which contribute to CO2 emissions and resource depletion. To improve sustainability, this study explores replacing cement with Sugarcane Bagasse Ash (SCBA) and sand with Crushed Groundnut Shells (CGS) in M25 concrete. Using PPC 43 grade cement, river sand, crushed stone, SCBA (2%, 5%, 10%), and 5% CGS, mixes were tested for workability (slump test) and compressive strength at 7, 14, and 28 days. Results showed the best compressive strength at 5% SCBA with 5% CGS, while higher SCBA reduced strength slightly. Both SCBA and CGS are low-cost agricultural wastes, offering environmental and economic benefits, supporting sustainable construction practices.
Conclusion
The incorporation of 5% Sugarcane Bagasse Ash and 5% Crushed Groundnut Shells in M25 concrete provides optimal compressive strength and workability. This approach supports waste utilization, reduces reliance on non-renewable resources, and offers economic advantages. Future research can explore durability parameters and field performance.
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